Home / 722,112.54-996,546.40-399,822.60

Finding the Fourth Proportional to 722,112.54, 996,546.40 and 399,822.60

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Solution

The fourth proportional to 722,112.54, 996,546.40 and 399,822.60 is: 551,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,112.54 : 996,546.40 = 399,822.60 : x
  2. Step 2: Convert to fraction form
    722,112.54/996,546.40 = 399,822.60/x
  3. Step 3: Cross multiply
    722,112.54x = 996,546.40 × 399,822.60
  4. Step 4: Simplify right side
    722,112.54x = 398,441,772,668.64
  5. Step 5: Solve for x
    x = 398,441,772,668.64/722,112.54
  6. Step 6: Final answer
    x = 551,772.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.